Analog I/O module EAs-nur

digitalRS-485Modbus TCP

Short description
Our EA modules are designed for applications in building automation, industrial automation and infrastructure. Available in widths of 4, 8 or 12 TE depending on the total number of I/Os, these analog IO modules fit standard 45 mm panel cutouts. All modules provide a wide-range power supply of 12–48 VDC.

Versions & interfaces

• RS485 version: ASCII + MODBUS/RTU (Slave)
• Ethernet version: ASCII + MODBUS/TCP (Server). Ethernet models additionally support MODBUS/RTU over Ethernet.

Configuration
Parameterisation and testing are performed with the free RESIConfigurator software. Each product includes a complete ASCII command list and a MODBUS register table with detailed explanations.

Analog functions (selectable per channel)

• Analog input: 0/2–10 V or 0/4–20 mA
• Analog output: 0/2–10 V or 0/4–20 mA
• Resistance input: 0–1 MΩ
• RTD/temperature sensor input: PT100, PT1000, NI1000‑DIN43760
• Digital input: dry contact or 24 VDC

Additional modules / signals
Classic analog I/O modules for −10 V to +10 V signals are also available.

Temperature sensor modules
EA modules for temperature sensors can read the current temperature from up to 8 RTD sensors. Sensor inputs support 2-, 3- or 4-wire wiring; supported sensor types: PT100, PT1000, NI100‑DIN43760.

Available variants (selection)

• Interfaces: RS485 (ASCII + MODBUS/RTU Slave), Ethernet (ASCII + MODBUS/TCP Server)
• Analog EA variants: 4xAIOX (universal analog I/Os), 8xAIOX, 16xAIOX
• Other variants: 12xAE (−10 V / +10 V), 12xAA (−10 V / +10 V), 8xRTD (various RTD options)

Notes
In addition to MODBUS the modules support a simple ASCII protocol for integration with media control systems or IoT controllers (e.g. Node-RED, NodeJs, Python).

Technical data / specifications

• Article no.: RESI-4AIOX-SIO
• Product group: EAs (analog-only EAs)
• Enclosure sizes: 4 TE, 8 TE or 12 TE (depending on number of I/Os)
• Suitable for 45 mm panel cutout
• Supply voltage: 12–48 VDC (wide-range)
• Interfaces: RS485 (MODBUS/RTU Slave), Ethernet (MODBUS/TCP Server)
• Protocols: MODBUS/RTU, MODBUS/TCP, ASCII
• Analog signals: 0/2–10 V, 0/4–20 mA, −10…+10 V (depending on module type)
• RTD support: PT100, PT1000, NI1000‑DIN43760 (2-/3-/4-wire)
• Max. RTD channels (for RTD modules): up to 8 sensors
• Configuration: RESIConfigurator + supplied ASCII command list and MODBUS register table
• Price (excl. taxes): 249.90 EUR